Thicker wheels last longer and cut more slowly generating more friction and heat. The thickness of the wheels is also significant. Estimated Delivery Time Frame: business days. Ships on. The user should make sure that they have taken great care grknder read the instructions before setting up and using the bench grinder.

A lower speed reduces the chance of the edge of your tool overheating. Slow speed grinders do still generate heat, but it happens at a more controllable pace that is ideal for work on delicate metals.

This is what is required for sharpening work because the edges of cutting tools are very thin and can overheat easily. With a slow speed grinder and some practice you can learn to sharpen just about any cutting tool without ruining the hardness of the blades.

Slow speed grinders tend to cost a bit more because they need better motors. Slow motors need to have more power and torque to overcome lower inertia and possible stalling during the grinding process.

If the motor on your bench grinder is under 1HP you should be able to control the speed with a router speed control. My experience with this kind of set-up,however, is that when the speed is lowered, it loses its steady rhythm and jerks between 90 and RPM.

You can slow down your bench grinder by fitting a belt pulley in the place of the wheel. You can then fir a V belt to a secondary shaft with a larger pulley wheel. By running the motor through a variable rheostat control, you will reducing the voltage to the motor.

In order to make up for the reduced voltage, the motor will demand more amps. This will cause the motor to run hotter. The correct way to do this is with a VFD variable frequency drive. This will change the 60 cycle frequency that the motor runs on and make the motor a variable speed Slow Speed Grinder Australia Login motor without changing the voltage or the amperage.

The down side of this is that when you slow it down with a VFD, the motor loses torque at Slow Speed Bench Grinder Australia Qa the same time. This means that the grinder is easier to stall. VFDs aren't as expensive as they used to be, but probably more than you want to spend on a low end bench grinder.

This is the safest and most reliable way of slowing down your bench grinder. Generally speaking, the smaller the wheel size, the slower the grinder speed.

So as your grinding wheel wears down, it will also slow down. The thickness of the wheels is also significant. Thicker wheels last longer and cut more slowly generating more friction and heat. Change your location. Estimate your Shipping :. Related Products. Loading Shipping Methods. Available Shipping Methods:. More info. Product Video. My Cart Close. Your cart is empty Browse products and add to your cart.

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